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Rubber Adhesion Behaviour

hassan giashi's picture

Dear everyone

My project is about the adhesional friction between rubber and a rigid surface. In this case I have modeled a block of rubber which is sliding on a real rough rigid surface in ABAQUS.

Cohesive bonding assumption via ABAQUS Standard was then implemented to model the resulting adhesional forces during the rubber sliding. In order to study the effects of the surface roughness, the surface was simulated by an analytical function in a sinusoidal shape. Hence, there are some small vertical gaps between the surface and some parts of rubber during sliding. 

Then, two kinds of cohesive bonding are generated during the rubber block sliding: 

1. Tangential adhesion bonding: on the zones that there is no vertical gap between rubber and surface which cause the shear stresses in rubber contact patch

2. Vertical adhesion bonding: on the zones that there is vertical gap between rubber and surface which cause the normal stresses in rubber contact patch

I want to know which of the above mentioned factors are more important to analyzing the rubber adhesional performance in reality?  To put it in another way, which of them is generally more stronger or persistent during the sliding?   

 

I need actually some probable experimental achievements or verified technical results for this topic. Could you give me a favor please?

Thank you very much in advance.

Best wishes,

Abolhasan

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